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Finding the Fourth Proportional to 492,392.88, 738,688.68 and 155,486.16

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Solution

The fourth proportional to 492,392.88, 738,688.68 and 155,486.16 is: 233,260.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,392.88 : 738,688.68 = 155,486.16 : x
  2. Step 2: Convert to fraction form
    492,392.88/738,688.68 = 155,486.16/x
  3. Step 3: Cross multiply
    492,392.88x = 738,688.68 × 155,486.16
  4. Step 4: Simplify right side
    492,392.88x = 114,855,866,288.67
  5. Step 5: Solve for x
    x = 114,855,866,288.67/492,392.88
  6. Step 6: Final answer
    x = 233,260.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.